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   http://www.apache.org/licenses/LICENSE-2.0

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<html>
    <head>
        <meta charset="utf-8">
        <script src="lib/esl.js"></script>
        <script src="lib/config.js"></script>
        <script src="lib/jquery.min.js"></script>
        <meta name="viewport" content="width=device-width, initial-scale=1" />
        <link rel="stylesheet" href="lib/reset.css">
    </head>
    <body>
        <style>
            .chart {
                width: 100%;
                height: 600px;
            }
            h2 {
                text-align: center;
                font-size: 16px;
                line-height: 30px;
                font-weight: normal;
                color: #eee;
                background: #333;
            }
            .foot {
                font-size: 12px;
                color: #999;
                text-align: center;
            }
        </style>

        <h2></h2>
        <div class="chart" id="main0"></div>

        <div class="foot">
            Thanks to: 若怀冰 <br>
            http://gallery.echartsjs.com/explore.html?u=bd-16906679 <br>
            http://gallery.echartsjs.com/editor.html?c=xHJw-hVqjW
        </div>


        <script>

            var echarts;
            var data;

            require([
                'echarts'
            ], function (ec) {
                echarts = ec;
                echarts && data && init();
            });

            $.getJSON('./data/house-price-area2.json', function (d) {
                data = d;
                echarts && data && init();
            });

            function init() {
                var el = document.getElementById('main0');
                var chart = echarts.init(el);

                var option = {
                    title: {
                        text: 'Dispersion of house price based on the area',
                        left: 'center',
                        top: 0
                    },
                    visualMap: {
                        min: 15202,
                        max: 159980,
                        dimension: 1,
                        orient: 'vertical',
                        right: 10,
                        top: 'center',
                        text: ['HIGH', 'LOW'],
                        calculable: true,
                        inRange: {
                            color: ['#f2c31a', '#24b7f2']
                        }
                    },
                    tooltip: {
                        trigger: 'item',
                        axisPointer: {
                            type: 'cross'
                        }
                    },
                    xAxis: [{
                        type: 'value'
                    }],
                    yAxis: [{
                        type: 'value'
                    }],
                    series: [{
                        name: 'price-area',
                        type: 'scatter',
                        symbolSize: 5,
                        // itemStyle: {
                        //     normal: {
                        //         borderWidth: 0.2,
                        //         borderColor: '#fff'
                        //     }
                        // },
                        data: data
                    }]
                };

                chart.setOption(option);
            }

        </script>

    </body>
</html>